package com.tanhua.server.service;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.tanhua.common.pojo.User;
import com.tanhua.common.pojo.UserInfo;
import com.tanhua.common.utils.UserThreadLocal;
import com.tanhua.dubbo.server.pojo.RecommendUser;
import com.tanhua.dubbo.server.vo.PageInfo;
import com.tanhua.server.vo.PageResult;
import com.tanhua.server.vo.RecommendUserQueryParam;
import com.tanhua.server.vo.TodayBest;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Service;
import org.springframework.util.CollectionUtils;

import java.util.*;

@Service
public class TodayBestService {

    @Autowired
    private UserService userService;

    @Autowired
    private RecommendUserService recommendUserService;

    @Autowired
    private UserInfoService userInfoService;

    @Value("${tanhua.sso.default.user}")
    private Long defaultUser;

    public TodayBest queryTodayBest() {

        //校验token是否有效，通过SSO的接口进行校验
        User user = UserThreadLocal.get();

        if (null == user) {
            // token非法 或者已经过期
            return null;
        }

        // token存在 查询推荐今日佳人
        TodayBest todayBest = this.recommendUserService.queryTodayBest(user.getId());
        // 如果不存在就给出默认的
        if (null == todayBest) {
            todayBest = new TodayBest();
            todayBest.setId(defaultUser);
            todayBest.setFateValue(80L); // 给一个固定值 但是逻辑不合理
        }

        // 存在 补全个人信息
        UserInfo userInfo = this.userInfoService.queryUserInfoByUserId(todayBest.getId());

        if (null == userInfo) {
            // 如果不存在就返回null
            return null;
        }
        // 补全信息
        todayBest.setAvatar(userInfo.getLogo());
        todayBest.setNickname(userInfo.getNickName());
        todayBest.setTags(StringUtils.split(userInfo.getTags(), ','));
        todayBest.setGender(userInfo.getSex().getValue() == 1 ? "man" : "woman");
        todayBest.setAge(userInfo.getAge());

        return todayBest;
    }

    /**
     * 查询推荐用户列表
     *
     * @param queryParam
     * @return
     */
    public PageResult queryRecommendation(RecommendUserQueryParam queryParam) {

        // 校验token是否有效
        User user = UserThreadLocal.get();
        if (null == user) {
            // token 过期或者非法
            return null;
        }

        PageResult pageResult = new PageResult();
        pageResult.setPage(queryParam.getPage());
        pageResult.setPagesize(queryParam.getPagesize());

        PageInfo<RecommendUser> pageInfo =
                this.recommendUserService.queryRecommendUserList(user.getId(), queryParam.getPage(), queryParam.getPagesize());

        List<RecommendUser> records = pageInfo.getRecords();
        if (CollectionUtils.isEmpty(records)) {
            // 没有查询到推荐的用户列表
            return pageResult;
        }

        // 填充个人信息


        // 收集推荐用户的id
        Set<Long> userIds = new HashSet<>();
        for (RecommendUser record : records) {
            userIds.add(record.getUserId());
        }

        QueryWrapper<UserInfo> queryWrapper = new QueryWrapper<>();
        // 用户id 参数
        queryWrapper.in("user_id", userIds);
        if (StringUtils.isNoneEmpty(queryParam.getGender())) {
            // 需要性别参数查询
            queryWrapper.eq("sex", StringUtils.equals(queryParam.getGender(), "man") ? 1 : 2);
        }

        if (StringUtils.isNoneEmpty(queryParam.getCity())) {
            // 需要城市参数查询
            queryWrapper.eq("city", queryParam.getCity());
        }

        if (queryParam.getAge() != null) {
            queryWrapper.le("age", queryParam.getAge());
        }


        List<UserInfo> userInfoList = this.userInfoService.queryUserInfoList(queryWrapper);

        if (CollectionUtils.isEmpty(userInfoList)) {
            // 没有查询到用户的基本信息
            return pageResult;
        }

        // 查询到了
        List<TodayBest> todayBests = new ArrayList<>();
        for (UserInfo userInfo : userInfoList) {

            TodayBest todayBest = new TodayBest();
            todayBest.setId(userInfo.getId());
            todayBest.setAvatar(userInfo.getLogo());
            todayBest.setNickname(userInfo.getNickName());
            todayBest.setTags(StringUtils.split(userInfo.getTags(), ","));
            todayBest.setGender((userInfo.getSex().getValue() == 1 ? "man" : "woman"));
            todayBest.setAge(userInfo.getAge());


            // 设置缘分值
            for (RecommendUser record : records) {
                if (record.getUserId().longValue() == userInfo.getId().longValue()) {
                    double score = Math.floor(record.getScore());
                    todayBest.setFateValue(Double.valueOf(score).longValue());
                    break;
                }
            }
            todayBests.add(todayBest);
        }

        // 按照缘分值仅需倒序排序
        Collections.sort(todayBests, (o1, o2) -> new Long(o2.getFateValue() - o1.getFateValue()).intValue());
        pageResult.setItems(todayBests);
        return pageResult;
    }
}
